diff --git a/BOM.md b/BOM.md
index 4d16100..3d98aa7 100644
--- a/BOM.md
+++ b/BOM.md
@@ -1,6 +1,7 @@
 |type|function||
 |--|--|--|
 |MG90S|movement|
-|ESP32-C3 mini
-|ESP32-C3 Super Mini breakout expansion board module
-|IR Break Beam Sensor - 5mm 2168
\ No newline at end of file
+|ESP32-C3 mini|the brains
+|ESP32-C3 Super Mini breakout expansion board module|easy mounting
+|IR Break Beam Sensor - 5mm 2168|tool active
+|GX-12|connector
\ No newline at end of file